P'sachim, fol. 57, col. 1.
The keys of the treasury of Korah were so many that it required three hundred white mules to carry them. These, with the locks, were said to be made of white leather.
Ibid., fol. 119, col. 1.
The Midrash repeats the same story, and adds, "His wealth was his ruin." "He is as rich as Korah" is now a Jewish proverb.
Rav Chiya, the son of Adda, was tutor to the children of Resh Lakish, and once absented himself from his duties for three days. On his return he was questioned as to the reason of his conduct, and he gave the following reply: "My father bequeathed to me a vine, trained on high trellis-work as a bower, from which I gathered the first day three hundred bunches, each of which yielded a gerav of wine (a gerav is a measure containing as much as 288 egg-shells would contain). On the second day I again gathered three hundred bunches of smaller size, two only producing one gerav (one bunch yielding the quantity of wine 144 egg-shells would contain). The third day I also gathered three hundred bunches, but only three bunches to the gerav, and have yet left more than half of the grapes free for any one to gather them." Thereupon Resh Lakish observed to him, "If thou hadst not been so negligent (losing time in the instruction of my children), it would have yielded still more."
Kethuboth, fol. 111, col. 2.
There were three hundred species of male demons in Sichin, but what the female demon herself was like is known to no one.
Gittin, fol. 68, col. 1.
"Now, when Job's three friends heard of all this evil that was come upon him, they came each from his own place; Eliphaz the Temanite, Bildah the Shuhite, and Zophar the Naamathite: for they had made an appointment together to come and mourn with him, and to comfort him" (Job ii. 11). What is meant when it is said, "They had made an appointment together"? Rab. Yehudah says in the name of Rav, "This is to teach that they all came in by one gate." But there is a tradition that each lived three hundred miles away from the other. How then came they to know of Job's sad condition? Some say they had wreaths, others say trees (each representing an absent friend), and when any friend was in distress the one representing him straightway began to wither. Rava said, "Hence the proverb, 'Either a friend as the friends of Job, or death.'"
Bava Bathra, fol. 16, col. 2.